// Copyright 2020 gorse Project Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package parallel

type Future struct {
	done chan struct{}
}

func Async(f func()) *Future {
	future := &Future{done: make(chan struct{})}
	go func() {
		f()
		close(future.done)
	}()
	return future
}

func (f *Future) Wait() {
	<-f.done
}
